Separate period
Any period during all of which a part D eligible individual is entitled to hospital insurance benefits under part A and—
(i)#
which terminated in or before the month preceding the month in which the individual attained age 65; or
(ii)#
for which the basis for eligibility for such entitlement changed between section 426(b) of this title and section 426(a) of this title , between 426(b) 2 2 So in original. Probably should be “section 426(b)”. of this title and section 426–1 of this title , or between section 426–1 of this title and section 426(a) of this title ,
shall be a separate continuous period of eligibility with respect to the individual (and each such period which terminates shall be deemed not to have existed for purposes of subsequently applying this paragraph).